Metal Halide Lamps at university - any suggestions?

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spotify95
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Re: Metal Halide Lamps at university - any suggestions?

Postby spotify95 » 07 Oct 2015, 19:54

Well, the Metal Halides on Ebay have now sold (and not to me... :() and the Queens Building of DMU still has those nasty metal halide light fittings installed.

When will they actually be replaced?!

I'm going into the university tomorrow so I should be able to get some images of the foyer then.


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spotify95
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Re: Metal Halide Lamps at university - any suggestions?

Postby spotify95 » 11 Nov 2015, 20:25

Thought this was relevant to this thread, so here goes:

Found out a couple of weeks ago that two of the lecture theatres in the Queens Building use mercury vapor bulbs as their main method of lighting! :(

That explains why, on past experiences, the lights wouldn't turn on immediately after turning them off - due to the restrike period that all HID lights have. This includes the MH and MV bulbs.

Hopefully these will replaced with LEDs - 10W LEDs would be just as bright as the 80W mercury bulbs currently in use.


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spotify95
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Re: Metal Halide Lamps at university - any suggestions?

Postby spotify95 » 07 Jan 2018, 15:38

Update (late 2017):

The metal halide situation is no better.

Currently a total of 3x lights now working properly (that's 3 out of 32). Two lamps that were previously OK are now showing signs of capacitor plague.

The whole lot need to come down and get replaced with LED!



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